[64077] in North American Network Operators' Group
RE: Pitfalls of annoucing /24s
daemon@ATHENA.MIT.EDU (Forrest)
Wed Oct 15 23:58:34 2003
Date: Wed, 15 Oct 2003 22:57:44 -0500 (CDT)
From: Forrest <forrest@almighty.c64.org>
To: Andrew Dul <andrew.dul@quark.net>
Cc: michael@awtechnologies.com, <nanog@merit.edu>
In-Reply-To: <3.0.5.32.20031015203445.01b24e08@pop3.quark.net>
Errors-To: owner-nanog-outgoing@merit.edu
True enough, but are there any providers currently that filter /24's from
the old Class C space that /24's were assigned directly from?
I realize that if proposal 2002-3 does get passed but everyone filters
those prefixes then it will be a completely worthless proposal, and even
worse than using PA space.
It seems to me that proposal 2002-3 could enable providers to filter more
efficiently however. They could accept the long prefixes out of the
micro-assignment block, while filtering out all the garbage /24's in the
other space caused by people needlessly announcing every /24 out of their
large aggregate.
Forrest
On Wed, 15 Oct 2003, Andrew Dul wrote:
> Forrest,
>
> Even if ARIN passes this policy that will not make any provider change
> their filtering policy. It is true that many providers do use the ARIN
> allocation sizes to create their filtering rules but the two are not
> inherently linked. Any ASN can choose the filter on what ever rule set
> they choose.
>
> Andrew
>
